Use go embed to load queries from static files (#607)

pkg/statements/sql/databases.sql

@@ -0,0 +1,8 @@
+SELECT
+  datname
+FROM
+  pg_database
+WHERE
+  NOT datistemplate
+ORDER BY
+  datname ASC

pkg/statements/sql/estimated_row_count.sql

@@ -0,0 +1,6 @@
+SELECT
+  reltuples
+FROM
+  pg_class
+WHERE
+  oid = ('"' || $1::text || '"."' || $2::text || '"')::regclass

pkg/statements/sql/info.sql

@@ -0,0 +1,10 @@
+SELECT
+  session_user,
+  current_user,
+  current_database(),
+  current_schemas(false),
+  inet_client_addr(),
+  inet_client_port(),
+  inet_server_addr(),
+  inet_server_port(),
+  version()

pkg/statements/sql/materialized_view.sql

@@ -0,0 +1,13 @@
+SELECT
+  attname AS column_name,
+  atttypid::regtype AS data_type,
+  (CASE WHEN attnotnull IS TRUE THEN 'NO' ELSE 'YES' END) AS is_nullable,
+  NULL AS character_maximum_length,
+  NULL AS character_set_catalog,
+  NULL AS column_default
+FROM
+  pg_attribute
+WHERE
+  attrelid = $1::regclass
+  AND attnum > 0
+  AND NOT attisdropped

pkg/statements/sql/objects.sql

@@ -0,0 +1,25 @@
+SELECT
+  n.nspname AS schema,
+  c.relname AS name,
+  CASE c.relkind
+    WHEN 'r' THEN 'table'
+    WHEN 'v' THEN 'view'
+    WHEN 'm' THEN 'materialized_view'
+    WHEN 'i' THEN 'index'
+    WHEN 'S' THEN 'sequence'
+    WHEN 's' THEN 'special'
+    WHEN 'f' THEN 'foreign_table'
+  END AS type,
+  pg_catalog.pg_get_userbyid(c.relowner) AS owner,
+  pg_catalog.obj_description(c.oid) AS comment
+FROM
+  pg_catalog.pg_class c
+LEFT JOIN
+  pg_catalog.pg_namespace n ON n.oid = c.relnamespace
+WHERE
+  c.relkind IN ('r','v','m','S','s','')
+  AND n.nspname !~ '^pg_toast'
+  AND n.nspname NOT IN ('information_schema', 'pg_catalog')
+  AND has_schema_privilege(n.nspname, 'USAGE')
+ORDER BY
+  1, 2

pkg/statements/sql/schemas.sql

@@ -0,0 +1,6 @@
+SELECT
+  schema_name
+FROM
+  information_schema.schemata
+ORDER BY
+  schema_name ASC

pkg/statements/sql/table_constraints.sql

@@ -0,0 +1,14 @@
+SELECT
+  conname AS name,
+  pg_get_constraintdef(c.oid, true) AS definition
+FROM
+  pg_constraint c
+JOIN
+  pg_namespace n ON n.oid = c.connamespace
+JOIN
+  pg_class cl ON cl.oid = c.conrelid
+WHERE
+  n.nspname = $1
+  AND relname = $2
+ORDER BY
+  contype DESC

pkg/statements/sql/table_indexes.sql

@@ -0,0 +1,9 @@
+SELECT
+  indexname AS index_name,
+  pg_size_pretty(pg_table_size((schemaname || '.' || indexname)::regclass)) AS index_size,
+  indexdef AS index_definition
+FROM
+  pg_indexes
+WHERE
+  schemaname = $1
+  AND tablename = $2

pkg/statements/sql/table_info.sql

@@ -0,0 +1,5 @@
+SELECT
+  pg_size_pretty(pg_table_size($1)) AS data_size,
+  pg_size_pretty(pg_indexes_size($1)) AS index_size,
+  pg_size_pretty(pg_total_relation_size($1)) AS total_size,
+  (SELECT reltuples FROM pg_class WHERE oid = $1::regclass) AS rows_count

pkg/statements/sql/table_info_cockroach.sql

@@ -0,0 +1,5 @@
+SELECT
+  'n/a' AS data_size,
+  'n/a' AS index_size,
+  'n/a' AS total_size,
+  'n/a' AS rows_count

pkg/statements/sql/table_schema.sql

@@ -0,0 +1,13 @@
+SELECT
+  column_name,
+  data_type,
+  is_nullable,
+  character_maximum_length,
+  character_set_catalog,
+  column_default,
+  pg_catalog.col_description(('"' || $1::text || '"."' || $2::text || '"')::regclass::oid, ordinal_position) as comment
+FROM
+  information_schema.columns
+WHERE
+  table_schema = $1
+  AND table_name = $2